Home Ahead of print Instructions Contacts
About us Current issue Submit article Advertise  
Editorial board Archives Subscribe Login   
ORIGINAL ARTICLE
Year : 2022  |  Volume : 28  |  Issue : 2  |  Page : 144-148

Correlation of eustachian tube dimension and chronic otitis media


1 Department of ENT, K S Hegde Medical Academy, Mangalore, Karnataka, India
2 Department of Radiology, K S Hegde Medical Academy, Mangalore, Karnataka, India

Correspondence Address:
Dr. M K Goutham
Department of ENT, K S Hegde Medical Academy, Deralakatte, Mangalore - 575 018, Karnataka
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/indianjotol.indianjotol_38_21

Rights and Permissions

Background: Eustachian tube (ET) is a dynamically intricate and poorly accessible structure connecting the nose and the middle ear. Although chronic otitis media (COM) is multifactorial disease, ET dysfunction is an important but overlooked predisposing factor. With newer evidence into the dynamics and prognostic factor in outcome of middle ear surgeries, it has become a focus of research. Our study aims to evaluate the various ET parameters using high-resolution computed tomography (HRCT) scan with multiplanar reconstruction technique. These parameters were compared between the diseased and normal ears to evaluate any association between the ET parameters and middle ear disease. Materials and Methods: It is a retrospective study of 66 HRCTs, with 47 HRCTs of COM and rest were controls. ET parameters including (a) ET-angle, (b) length, (c) pretympanic diameter, and (d) diameter at isthmus are measured accurately using HRCT temporal bone. Results: ET angle was significantly obtuse in COM group (154.81° ± 6.33°) when compared with the controls (149.99° ± 6.24°) with P < 0.001. Similar observation in ET angle was noted in diseased ear (154.54° ± 5.79°) in unilateral COM when compared with contralateral ear (149.56° ± 6.87°) (P = 0.001). ET was longer in COM group (3.44 ± 0.31) when compared with controls (3.4 ± 0.35). Pretympanic diameter and diameter at isthmus were greater in control group. Conclusion: The obtuse ET angle and narrow pretympanic diameter may contribute to the pathogenesis of COM. These measurements may be useful in the assessment of ET function preoperatively and might help in determining the surgical outcome. HRCT of temporal bone with multiplanar reconstruction is an effective tool to measure ET dimensions accurately.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed42    
    Printed0    
    Emailed0    
    PDF Downloaded7    
    Comments [Add]    

Recommend this journal